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Yamaha MS101-4 Powered Monitor Speaker 30W Class-D (Single)

BH #YAMS1014 • MFR #MS101-4
11 reviews
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Yamaha MS101-4 Powered Monitor Speaker 30W Class-D (Single)
Key Features
  • Combo XLR-1/4", 3.5mm, 1/4" TRS Inputs
  • Compact Design
  • 4" Driver
  • 77 Hz to 20 kHz Frequency Range (-10 dB)
Audio professionals looking for a compact and portable reference monitor will be impressed with the Yamaha MS101-4, a compact full-range monitor speaker for use in professional mobile, project, or home studios. The speaker features a 4" full-range driver powered by an integrated 30W Class-D amplifier. Inputs include a combo XLR-1/4" mic/line connector on the front panel, while the rear provides 3.5mm TRS and a 1/4" TRS line inputs. A 1/4" output is available for connecting to an additional monitor or other compatible devices.
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Yamaha MS101-4 Overview

Audio professionals looking for a compact and portable reference monitor will be impressed with the Yamaha MS101-4, a compact full-range monitor speaker for use in professional mobile, project, or home studios. The speaker features a 4" full-range driver powered by an integrated 30W Class-D amplifier. Inputs include a combo XLR-1/4" mic/line connector on the front panel, while the rear provides 3.5mm TRS and a 1/4" TRS line inputs. A 1/4" output is available for connecting to an additional monitor or other compatible devices.

The front panel also includes a power switch and controls for volume and low and high EQ. The MS101-4 comes with a 3/8-16 threaded female mount for direct attachment to a Euro microphone stand, and optional accessories can also be added for use in a wide range of applications. The MS101-4 ships with a power cord.

  • Compact, lightweight form that is both portable and durable
  • Simple and easy to operate
  • Controls (power switch, volume, and tone controls)
  • Combo jack input on the lower front panel
  • Sturdy metal grill offers complete protection
  • 4" cone driver
  • 30W amplifier provides clean, high output sound
  • Redesigned enclosure for an even lower profile
  • Combo input jack accepts both XLR and 1/4" connectors
  • Directly mountable on Euro microphone stands (optional mic-stand adapter BMS10A is available for adjusting tilt angle)
UPC: 889025138727

Yamaha MS101-4 Specs

Key Specs
Monitor Type & Configuration
Active Full-Range
Total Power Output
30 W RMS
Full Range Drivers
1x 4" / 10.1 cm Cone
Voice Coil: 1" / 25.4 mm
Frequency Range
77 Hz to 20 kHz
Audio I/O
1x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input (5.4 Kilohms)
1x 1/8" / 3.5 mm TRS Unbalanced Line Input (10 Kilohms)
1x 1/4" TRS Balanced/Unbalanced Line Input (10 Kilohms)
1x 1/4" TRS Balanced/Unbalanced Line Output
Digital Audio I/O
No
Network I/O
No
Wireless
No
Monitor Type & Configuration
Active Full-Range
Number of Included Monitors
Single Monitor
Enclosure
Bass-Reflex/Ported, Shielded
Total Power Output
30 W RMS
Drivers
Full Range
1x 4" / 10.1 cm Cone
Voice Coil: 1" / 25.4 mm
Amplifiers
Full-Range: 30 W RMS Class-D
Performance
Frequency Range
77 Hz to 20 kHz
Maximum Sound Pressure Level (SPL)
115 dB
Analog Input Sensitivity/Gain
-10 dBu
Signal Processing
EQ
1x HF Shelf
1x LF Shelf
Filters
No
Phase Adjustment
No
Connectivity
Audio I/O
1x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input (5.4 Kilohms)
1x 1/8" / 3.5 mm TRS Unbalanced Line Input (10 Kilohms)
1x 1/4" TRS Balanced/Unbalanced Line Input (10 Kilohms)
1x 1/4" TRS Balanced/Unbalanced Line Output
Digital Audio I/O
No
Network I/O
No
USB
No
Wireless
No
Mobile App Compatible
No
Power
AC Input Power
100 to 240 VAC, 50/60 Hz
Power Consumption
3 W (Idle)
10 W (Typical)
Physical
Color
Black
Monitor Orientation
Vertical
Mounting Points
2x M5 (Bottom Panel)
Dimensions (W x H x D)
5.6 x 7.7 x 7.4" / 14.2 x 19.6 x 18.7 cm
Weight
4.6 lb / 2.1 kg
Packaging Info
Package Weight
6.67 lb
Box Dimensions (LxWxH)
13.2 x 11.1 x 9.8"

Yamaha MS101-4 Reviews

Perfect little monitor for presenter IFB and Zoom feedback loops

By Mark
Rated 5 out of 5
Date: 2026-04-10

Not a main PA speaker — don't buy it for that. But for what I needed it to do, it's exactly right. I run corporate livestreams and needed a dedicated monitor so my on-site presenter could hear the Zoom call and have a real back-and-forth conversation with remote attendees/remote presenters. This thing solved it cleanly. Plugged straight in via XLR, set the level, done. No fuss. The XLR input is what makes it practical for production work. A lot of compact powered monitors at this price point are RCA or 1/8" only, which creates adapter headaches on a live event. This just drops into a normal signal chain. It's also genuinely compact — I throw it in my kit bag and it travels without drama. For the price, the build quality is solid and the volume is more than enough for a single presenter monitoring a mix. Again — not an audience speaker, not a wedge replacement. But as a confidence monitor or IFB-style solution for a presenter on a hybrid event? Hard to beat at this price.

Great Sounding Speaker!

By Barry
Rated 4 out of 5
Date: 2025-05-01

This speaker sounds great and is very loud. Nice size, but the high and low adjustments does not separate enough, you can hardly tell the difference. Wish it had mid range as well for voice , because it did not help me in my situation .

See any errors on this page?

Is there a way to adjust the microphone gain from ...

Is there a way to adjust the microphone gain from the speaker?
Asked by: Elazar
While there is not a multi-stage gain control, the Yamaha MS101-4 Powered Monitor Speaker 30W Class-D's single Volume pot on its front panel will affect the level of a connected microphone signal.
Answered by: Matt Z
Date published: 2025-10-09

Do these have good fidelity if used for CD / ...

Do these have good fidelity if used for CD / record music playback?
Asked by: Ernest
Yes, the Yamaha MS101-4 Powered Monitor Speaker 30W Class-D (Single) has good fidelity if used for CD/record music playback.
Answered by: David M
Date published: 2025-10-09

Can I plug a 3.5mm stereo cable from my PC's ...

Can I plug a 3.5mm stereo cable from my PC's line-out jack to this speaker's input?
Asked by: Robert
Yes, you can go from the headphone output on your PC or the 3.5mm line out on your PC into the line in jack on the back of the Yamaha MS101-4 Powered Monitor Speaker 30W Class-D (Single).
Answered by: Elliot
Date published: 2025-08-25

If i hook up a pair of these to my tv will the tv ...

If i hook up a pair of these to my tv will the tv remote control the volume or do i have to use the volume control on the speaker itself?
Asked by: Ron
Whether the volume of the Yamaha MS101-4 Powered Monitor Speaker 30W Class-D could be affected by the connected TV audio output source would depend on the functionality of the specific TV connected. Presumably the output on the TV is fixed and control over the MS101-4 would be adjusted via the onboard volume pots.
Answered by: Matt Z
Date published: 2025-08-25

Can a 2nd speaker be connected for stereo?

Can a 2nd speaker be connected for stereo?
Asked by: david
Not directly, no. You can add a second MS101-4 Powered Monitor to allow for a stereo setup, but the second monitor can't receive the corresponding signal via the first MS101-4. If you are sending the left channel to the first one, you can only send the same channel to a second speaker via the line-out XLR port. You will still need to wire the second speaker to the main device you are using to send a stereo signal to the speakers.
Answered by: Alex D
Date published: 2025-10-09
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